Could this be twisted around a bit, so that something you find fairly normal, some other people think is disgusting? When i was a kid, we used to have cheese and jam/cheese and marmalade sandwiches all the time. Some people seem to think this is stupid though.

Jam/peanut butter is dry as fuck. Bread is dry as fuck. Add the two together, and it's like trying to chew your way through a sticky cardigan. Get some butter on there to moisten the place up a bit, and you're got yourself some fun time.